高温下钢化玻璃承重楼板抗弯性能研究
发布时间：2019-02-15 09:42
【摘要】：跟随着我国不断前进的建设步伐,玻璃承重结构也开始普遍应用于现代建筑中,但目前我国对玻璃承重构件的研究较少,火灾下玻璃承重构件的承重性能研究就显得更为匮乏,火灾下玻璃承重构件的安全性是亟需解决的首要问题。本文针对建筑中钢化玻璃楼板的抗火性能进行部分研究,主要内容包括:(1)通过阅读和整理国内外对玻璃、钢化玻璃、钢化玻璃构件、钢化玻璃楼板研究的相关文献,分析了钢化玻璃的研究和使用现状,简要介绍了玻璃的力学性能和热工性能。(2)理论联系实际,通过实体的过火试验及ABAQUS有限元数值模拟,检验了某特定设计方式的防火玻璃和钢化玻璃组合楼板在标准升温条件下的抗火性能。在试验和模拟中,钢化玻璃楼板均满足设计要求的半小时耐火极限,为实际项目的实施提供了依据和参考。(3)本文重点通过稳态加载试验研究了不同厚度钢化玻璃在常温到300℃之间弯曲强度的变化。试验选取了8mm和12mm厚度的钢化玻璃试件(共150个),测试了其在不同温度段下(25℃、60℃、100℃、200℃、300℃)的抗弯强度、挠度、应变的变化。通过数据分析得到不同厚度钢化玻璃在温度升高后强度的降低系数,为钢化玻璃的抗火研究提供了参考。本文的研究成果将为火灾下玻璃承重结构的防火性能设计提供借鉴,这将促进玻璃承重构件在现代结构中的应用,并为相关工程提供技术支持,为未来相关规范的制定提供基础数据与经验。文章最后对钢化玻璃结构研究趋势进行了展望,提出了玻璃结构抗火研究尚需解决的问题。
[Abstract]:With the development of our country, glass load-bearing structure has been widely used in modern architecture. However, there are few researches on glass load-bearing components in our country at present, so the research on the load-bearing performance of glass load-bearing members under fire is even more scarce. The safety of glass bearing components under fire is the most important problem to be solved. The main contents of this paper are as follows: (1) through reading and finishing the domestic and foreign literature on glass, tempered glass components, tempered glass floor, The present research and application of toughened glass are analyzed, and the mechanical and thermal properties of the glass are briefly introduced. (2) through the over-fire test of solid and ABAQUS finite element numerical simulation, The fire resistance of fire proof glass and toughened glass composite floor with a certain design method was tested under the standard temperature rising condition. In the test and simulation, the tempered glass floor meets the design requirement of the half-hour fire resistance limit, It provides the basis and reference for the implementation of practical projects. (3) the change of bending strength of tempered glass with different thickness between room temperature and 300 鈩，
本文编号：2423206
[Abstract]:With the development of our country, glass load-bearing structure has been widely used in modern architecture. However, there are few researches on glass load-bearing components in our country at present, so the research on the load-bearing performance of glass load-bearing members under fire is even more scarce. The safety of glass bearing components under fire is the most important problem to be solved. The main contents of this paper are as follows: (1) through reading and finishing the domestic and foreign literature on glass, tempered glass components, tempered glass floor, The present research and application of toughened glass are analyzed, and the mechanical and thermal properties of the glass are briefly introduced. (2) through the over-fire test of solid and ABAQUS finite element numerical simulation, The fire resistance of fire proof glass and toughened glass composite floor with a certain design method was tested under the standard temperature rising condition. In the test and simulation, the tempered glass floor meets the design requirement of the half-hour fire resistance limit, It provides the basis and reference for the implementation of practical projects. (3) the change of bending strength of tempered glass with different thickness between room temperature and 300 鈩，
本文编号：2423206
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